Which is the basis of ABC analysis in inventory control?

RRB Nsg. Superintendent 21 July 2019 (shift 1st)

Nursing Management & leadership

Easy

Appeared in: RRB Nsg. Superintendent 21 July 2019 (shift 1st)

Explanation

ABC (Always Better Control) analysis is a method of selective inventory control.
It classifies inventory items into three categories (A, B, and C) based on their annual consumption value.
The annual consumption value is calculated as: Annual Demand × Unit Cost.
This method is based on the Pareto principle, which states that a small number of items (A-items) account for a large percentage of the overall value, while a large number of items (C-items) account for a small percentage of the value.
Category A items receive the tightest control, while Category C items have the least control.

Option A: This is the basis for VED (Vital, Essential, Desirable) analysis, not ABC analysis.
Option C: This is the basis for SDE (Scarce, Difficult, Easy) analysis.
Option D: This is the basis for HML (High, Medium, Low) analysis.

Visual 1: Diagram - A Pareto chart illustrating the 80/20 rule in ABC analysis, showing that a small percentage of items (Category A) accounts for a large percentage of the total consumption value.
Visual 2: Table - A summary table comparing different inventory control methods (ABC, VED, HML, SDE, FSN), their basis for classification, and their categories, as provided in the detailed explanation.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Inventory Control Methods: ABC Analysis as background academic context rather than a clinical decision trigger.
In a hospital setting, effective inventory management like ABC analysis is crucial for cost control and ensuring the availability of medical supplies.
By categorizing items, a nursing manager can focus attention on high-value drugs and equipment (A-items) to prevent stockouts and reduce financial investment in less critical, low-cost supplies (C-items).
This systematic approach prevents wastage due to expiry, reduces storage costs, and ensures that life-saving materials are available when needed, directly impacting patient safety and care quality.

How to Approach the Question

First, identify the key term in the question, which is 'ABC analysis' in the context of 'inventory control'.
Recall the definition and principle of ABC analysis. The mnemonic 'Always Better Control' suggests focusing on what's most significant.
The core principle of ABC analysis is the Pareto principle (80/20 rule), which is applied to the consumption value of items, not just their unit cost or criticality.
Evaluate the options. 'Annual consumption value' directly reflects the combination of an item's cost and its usage rate over a year, which is the basis for ABC classification.
Differentiate from other methods: 'Criticality' relates to VED analysis, 'procurement difficulty' to SDE analysis, and 'unit cost' alone to HML analysis. This confirms that 'annual consumption value' is unique to ABC analysis.

Concept Tested & Keywords

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